Re factoring the alphabetic paginator changed.
Review Request #6522 — Created Oct. 28, 2014 and submitted — Latest diff uploaded
reverting grids.py userDataGrid back to original behaviour, but now making it a subclass of the newly added AlphanumericDataGrid (which provides alphabetic pagination)
Unit tests all pass
All button cases manually tested. (Forward, back, first and last arrows, each letter).
Verified that changes to not affect any other module that inherits from datagrid (such as the groups list, or the all review requests list, the current 'master' of reviewboard with no changes to the userGrid).